Mechanical air door locking device

Abstract

The utility model provides a mechanical air door locking device, which belongs to the technical field of door closing linkage and comprises an upper base, a left rotating shaft and a right rotating shaft are mounted on the upper base, and a left pulling rope and a right pulling rope are respectively clamped on the left rotating shaft and the right rotating shaft. One ends of the left traction rope and the right traction rope are respectively connected with the air doors at the two ends of the channel after bypassing the corresponding rotating shafts, and the other ends of the left traction rope and the right traction rope are respectively connected with the left heavy hammer and the right heavy hammer after bypassing the corresponding rotating shafts. The mine ventilation door has the advantages that the traction rope is driven by the ventilation door to move, the heavy hammer is driven by the traction rope to ascend and open the ventilation door, after a worker walks, the traction rope is driven by the heavy hammer to move, then the ventilation door is driven to be closed, the closing effect of the ventilation door is guaranteed, and then the stability of a ventilation system in a mine tunnel is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of door closing linkage, specifically relates to a mechanical air door locking device. BACKGROUND

[0002] Long-distance ventilation air doors play a crucial role in mines, tunnels, or other underground spaces that require long-distance ventilation. Their main functions include; ventilation and air exchange, long-distance ventilation air doors ensure smooth air circulation in the tunnel or tunnel by controlling air flow, which helps to improve the air quality of the underground space, reduce harmful gas concentration, and provide a relatively safe and healthy working environment for workers; prevent air flow short circuit: in mines or tunnels, air flow short circuit may cause poor ventilation in some areas, and harmful gas accumulation, long-distance ventilation air doors can effectively prevent air flow short circuit by accurately controlling the air flow path, ensuring that each area can be fully ventilated; adjust the air volume, the air door can adjust the air volume according to the actual needs to meet the ventilation needs of different areas or different working faces, which helps to optimize the ventilation system, improve the ventilation efficiency, and reduce energy consumption; safety isolation: in the event of fire, explosion and other emergencies in the mine, long-distance ventilation air doors can be quickly closed to isolate the disaster area from the safe area, prevent the spread of disaster, and protect the safety of workers; auxiliary fire extinguishing: in the event of mine fire, the air door can adjust the air flow direction to assist in fire extinguishing work, for example, by reducing the air supply to the fire source, reducing the spread speed of the fire; or by providing enough fresh air to the fire source to support the normal work of the fire extinguishing equipment; energy saving and emission reduction: reasonable air door design and management can reduce the energy consumption of the mine ventilation system and reduce carbon emissions, in line with the development concept of green mine.

[0003] At present, long-distance ventilation air door locking mostly uses rope locking, but due to the weight of the oil wire rope, combined with the long distance between the air doors, the rope locking device is prone to rope jamming and rope breaking, which causes the air door to be not tightly locked, and the reliability of the air door locking is poor, and the air flow is prone to short circuit, which affects the stability of the ventilation system. Therefore, a kind of air door locking device capable of improving the reliability of air door locking is needed. UTILITY MODEL CONTENTS

[0004] The utility model aims at the rope locking used by the long-distance ventilation air door at present, due to the weight, combined with the long distance between the air doors, the rope locking device is prone to rope jamming and rope breaking, which causes the air door to be not tightly locked, and the reliability of the air door locking is poor, and the air flow is prone to short circuit, which affects the stability of the ventilation system. Therefore, a kind of air door locking device capable of improving the reliability of air door locking is needed.

[0005] In order to achieve the above object, the utility model provides a technical scheme for a mechanical air door locking device, which comprises an upper base, a left rotating shaft and a right rotating shaft are installed on the upper base, a left traction rope and a right traction rope are respectively clamped on the left rotating shaft and the right rotating shaft, one end of the left traction rope and the right traction rope is connected with the air door at both ends of the channel after passing through the corresponding rotating shaft, the other end of the left traction rope and the right traction rope is connected with a left weight and a right weight after passing through the corresponding rotating shaft, when the staff pushes the air door, the air door drives the traction rope to move, the traction rope drives the weight to rise, and the air door is opened, when the staff leaves, the weight drives the traction rope to move, and then the air door is driven to close the air door, the closing effect of the air door is ensured, and the stability of the ventilation system in the mine tunnel is ensured.

[0006] Further, the outer side of the left weight and the right weight is sleeved with a sleeve, the bottom of the sleeve is fixed with a lower base, the lower base is installed on the ground, the left weight and the right weight can be limited by the sleeve, and displacement of the left weight and the right weight is avoided.

[0007] Further, an intermediate shaft is arranged between the two sleeves, and a pressing block is rotatably connected to the intermediate shaft.

[0008] Further, the pressing block is V-shaped, one side of the pressing block can be in contact with the left weight, and the other side of the pressing block can be in contact with the right weight, when the weight on one side rises, the pressing block on one side is contacted, and the pressing block is lifted, so that the other side of the pressing block is pressed on the weight which is not lifted, the weight which is not lifted is lifted by the wind, and the closing effect of the air door is increased, and the air door is opened.

[0009] Further, a support is fixed on the intermediate shaft, the support is in the shape of an eight character, and the bottom of the support is fixed on the two sleeves.

[0010] Further, the outer circumferential surface of the left rotating shaft and the outer circumferential surface of the right rotating shaft are provided with annular grooves, the left traction rope and the right traction rope are clamped in the corresponding annular grooves, and the traction rope is prevented from being separated from the rotating shaft through the annular grooves.

[0011] From the above technical scheme, the utility model has the following advantages:

[0012] The traction rope is moved by the air door, the weight is lifted by the traction rope, the air door is opened, when the staff leaves, the traction rope is moved by the weight, and then the air door is driven to close the air door, the closing effect of the air door is ensured, and the stability of the ventilation system in the mine tunnel is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to make the technical scheme of the utility model more clear, the drawings needed in the description will be simply introduced below, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0014] Figure 1 It is the front view structural schematic diagram of the utility model.

[0015] In the drawing: 1, lower base; 2, upper base; 3, left rotating shaft; 4, right rotating shaft; 5, left traction rope; 6, right traction rope; 7, left weight; 8, right weight; 9, sleeve; 10, middle shaft; 11, support; 12, pressing block. Specific embodiments

[0016] In order to make the technical scheme of the utility model more clear, the drawings needed in the description will be simply introduced below, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0017] As Figure 1As shown, the embodiment proposes a mechanical air door locking device, which comprises an upper base 2, a left rotating shaft 3 and a right rotating shaft 4 are installed on the upper base 2, a left traction rope 5 and a right traction rope 6 are respectively clamped on the left rotating shaft 3 and the right rotating shaft 4, and in the embodiment, annular grooves are formed on the outer cylindrical surfaces of the left rotating shaft 3 and the right rotating shaft 4, and the left traction rope 5 and the right traction rope 6 are respectively clamped on the corresponding annular grooves, so that the annular grooves can avoid the situation that the traction ropes are separated from the rotating shafts, meanwhile, one end of the left traction rope 5 and the right traction rope 6 is connected with the air door at the two ends of the channel after passing through the corresponding rotating shaft, and the other end of the left traction rope 5 and the right traction rope 6 is connected with a left weight 7 and a right weight 8 after passing through the corresponding rotating shaft, a sleeve 9 is sleeved on the outer side of the left weight 7 and the right weight 8, a lower base 1 is fixed at the bottom of the sleeve 9, the lower base 1 is installed on the ground, the sleeve 9 can limit the left weight 7 and the right weight 8, so as to avoid the displacement of the left weight 7 and the right weight 8, a middle shaft 10 is arranged between the two sleeves 9, a bracket 11 is fixed on the middle shaft 10, the bracket 11 is in the shape of an eight character, the bottom of the bracket 11 is fixed on the two sleeves 9, a pressing block 12 is rotatably connected to the middle shaft 10, the pressing block 12 is in the shape of V, one side of the pressing block 12 can contact the left weight 7, and the other side of the pressing block 12 can contact the right weight 8, when the weight on one side is lifted, the pressing block 12 on the side can be contacted, and the other side of the pressing block 12 is lifted, so that the other side of the pressing block 12 is pressed on the weight which is not lifted, so as to avoid the situation that the weight which is not lifted is lifted due to the air blowing the air door, and the closing effect of the air door is increased, so as to avoid the situation that the air door is opened, when the staff pushes the air door, the air door drives the traction rope to move, the traction rope drives the weight to be lifted, and the air door is opened, when the staff leaves, the weight drives the traction rope to move, and the air door is closed, so as to ensure the closing effect of the air door, and the stability of the ventilation system in the mine tunnel is ensured.

[0018] The above description of disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Mechanical damper closure device comprising an upper base (2), characterized in that, The left rotating shaft (3) and the right rotating shaft (4) are installed on the upper base (2), the left traction rope (5) and the right traction rope (6) are respectively clamped on the left rotating shaft (3) and the right rotating shaft (4), one end of the left traction rope (5) and the right traction rope (6) is connected with the air door at the two ends of the channel after winding around the corresponding rotating shaft, and the other end of the left traction rope (5) and the right traction rope (6) is connected with the left heavy hammer (7) and the right heavy hammer (8) after winding around the corresponding rotating shaft.

2. The mechanical damper latching device of claim 1, wherein, The outer side of the left heavy hammer (7) and the right heavy hammer (8) is sleeved with the sleeve (9), the bottom of the sleeve (9) is fixed with the lower base (1), and the lower base (1) is installed on the ground.

3. The mechanical damper latching device of claim 2, wherein, The intermediate shaft (10) is arranged between the two sleeves (9), and the pressure block (12) is rotatably connected to the intermediate shaft (10).

4. The mechanical damper latching device of claim 3, wherein, The pressure block (12) is V-shaped, one side of the pressure block (12) can contact the left heavy hammer (7), and the other side of the pressure block (12) can contact the right heavy hammer (8).

5. The mechanical damper latching device of claim 4, wherein, The intermediate shaft (10) is fixed with the bracket (11), the bracket (11) is in the shape of a splay, and the bottom of the bracket (11) is fixed on the two sleeves (9).

6. The mechanical damper latching device of claim 1, wherein, The outer circumferential surface of the left rotating shaft (3) and the outer circumferential surface of the right rotating shaft (4) are provided with annular grooves, and the left traction rope (5) and the right traction rope (6) are clamped on the corresponding annular grooves.

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